I think this one is pretty nice. You just need to be more precise with the accepted linking terms, I think that's why some people scored it lower.

That was OK! went for Pole for magnetic line so no so far out with Peter then :-). I have a growing reputation of errors [which I am trying my best to eradicate] but Mary was the daughter not mother of Catherine. Did not spoil the grid but you will get those "who told you so" oops just done it. Have fun keep posting

Thanks St John, for pointing out my error. I've corrected it now.